In Fig. 20.34, a metal bar moves at constant velocity in a constant magnetic field. That field
Question:
.png)
(a) The direction of the induced current through the bar is (1) up, (2) down, (3) there is no current. Why?
(b) If the magnitude of the magnetic field is 0.55 T, what is the current in the bar? Neglect the resistances of the bar and wires.
(c) What are the magnitude and direction of the force on the bar?
(d) What is the power required by the force on the bar?
(e) Compare your answer to part (d) to the rate of joule heating in the resistor. They should be the same. Are they? Explain why they should be.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
a The righthand force rule tells us that the magnetic force on a positive charge in the bar ...View the full answer
Answered By
Rustia Melrod
I am a retired teacher with 6 years of experience teaching various science subjects to high school students and undergraduate students. This background enables me to be able to help tutor students who are struggling with the science of business component of their education. Teaching difficult subjects has definitely taught me patience. There is no greater joy for me than to patiently guide a student to the correct answer. When a student has that "aha!" moment, all my efforts are worth it.
The Common Core standards are a useful yardstick for measuring how well students are doing. My students consistently met or exceeded the Common Core standards for science. I believe in working with each student's individual learning styles to help them understand the material. If students were struggling with a concept, I would figure out a different way to teach or apply that concept. I was voted Teacher of the Year six times in my career. I also won an award for Innovative Teaching Style at the 2011 National Teaching Conference.
4+ Reviews
10+ Question Solved
Related Book For 
Question Posted:
